Streptococcus pneumoniae strain GPSC21

Streptococcus pneumoniae strain GPSC21 is a gram-positive bacterium characterized by its cocci shape and arrangement in chains or pairs. As a facultative anaerobe, it can survive in both aerobic and anaerobic environments. This strain has no mobility and lacks flagella. It thrives optimally at a temperature of 30°C, placing it within the mesophilic temperature range. GPSC21 is free-living and has one replicon and one membrane. It is primarily associated with various hosts, including Homo sapiens (humans), Gallus gallus (chickens), Cavia (guinea pigs), Meriones unguiculatus (gerbils), and Chinchilla species. This strain is known for its significant health impacts on humans, causing a wide range of diseases, including but not limited to bacteremia, pneumonia, meningitis, and various forms of infections such as sepsis, cellulitis, and otitis media. The pathogenicity of GPSC21 is particularly noted in its ability to lead to invasive pneumococcal disease (IPD) and community-acquired pneumonia (CAP), contributing to severe respiratory infections and complications such as purulent pericarditis and septic thrombosis of the cavernous sinus. The ecological insight drawn from the presence of GPSC21 in multiple hosts suggests a potential for zoonotic transmission or environmental persistence, highlighting the bacterium's adaptability and the importance of monitoring its prevalence in both human and animal populations to manage its associated health risks effectively.